Type-writing machine.



Patented Apr. 24, I900.

E. E. BARNEY.

TYPE WRITING MACHINE.

(Application filed 1m; 16, 1898.)

4 Sheets-Sheet I.

(No Model.)

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ATTORNEYS.

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Patented Apr. 24, I900.

E. E BARNEY. TYPE WRITING MACHINE.

(Aiaplica-tion filed Dec. 16, 1898.)

4 Sheets-Shaet 2.

(No Model.)

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W/ Til/8858 m: NORRIS PErEns co. morouma, wAsmnaToN. n. c.

Patented Apr. 24, I900.

E. E. BABNEY.. TYPE WRITING MACHINE.

(Application filed Dec. 16, 1898.) (No Model.) I 4 Sheats-Sheef 3.

' ATTORNEYS.

WITNESSES No. 648,062. Patented Apr. 24, I900. E. E. BARNEY. TYPEWRITING MACHINE.

(Applicationfiled Dec. 16, 1898) (No Model.) 4 Sheets-Sheet 4WIT/1158858 1 THE Nonms vzrzns 00.. more LIT 'NITED STATES PATENTOFFICE.

EDWIN EARL BARNEY, OF GROTON, NEiV YORK.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 648,062, dated April24, 1900.

Application filed December 16, 1898. Serial H0, 699,416. (No model.)

To whom it may concern.-

Be it known that I, EDWIN EARL BARNEY, of Groton, in the county ofTompkins, in the State of New York, have invented new and usefulImprovements in Type-Writing Machines, of which the following, taken inconnection with the accompanying drawings, is a full, clear, and exactdescription.

My invention relates to type-writing machines, and particularly to thecarriage, its

mounting, and the mounting of the impression-platen thereon.

My object is to produce an improved carriage and carriage-mount fortype-writing ed upon the front track by means of balls bearing uponthree sides of said front rail, constituting a triangular or polygonalballbearing, the ball casing or holder being adj ustable.

It is constructed as follows, reference being had to the accompanyingdrawings, in which T Figure 1 is a top plan of the top plate of atype-writing machine with the carriage and impression-platen thereon.Fig. 2 is an end elevation of one end thereof with the platen in itsnormal position. Fig. 3 is a like view of the other end thereof. Fig. 4:is a like View of Fig. 2, showing the platen swung forward and upward.Fig. 5 is a like view of Fig. 3, also showing the platen shifted. Fig. 6is a cross-section of the carriage and platen,show.- ing the latter inits normal position. Fig. 7 is a like view showing the platen shifted.Fig. 8 is a detail in section of the stop-pawl and part of theplaten-ratchet.

A is the top plate of a type writing machine, which can be of anysuitable COHStvI'llCr tion, provided with a rear track 2 and a fronttrack 3, elevated above said plate by means of suitable supports 4.

Bis the carriage,co1nprisinga suitable frame having a roller or rollers5 traversing the rear track. .Across' the front of the carriage a ballcarrier is mounted, comprising two pieces of metal 6, interiorlyangular, substantially as shown,secured together at the top with a spacebetween the adjacent. edges of their inward flanges 7, whereby the balls8 have bearings upon the walls of theinterior angles and upon said fronttrack,'which passes through this ball-retainer, which is also the frontrail of the carriage. ficiently flexible to permit of its adjustmentwith relation to the balls and track to regulate the ball-bea-ring bymeans of one or more adjusting-screws 9, transverse to the openingbetween the flanges 7, whereby all undesirable looseness of the ballscan be eliminated and the entire carriage steadied against vibration andrattling.

Uprights 10 are erected upon the end bars 11 of the carriage,substantially as shown, in which the platen-frame is journaled to swingupon arbors 12. This frame comprises two end pieces, each composed of afront arm 13, a vertical arm 14:, and a rear arm 15, a front rod 16connecting the arms 13 and a rear rod 17 connecting the arms 15, thewhole constitutingaswingingplaten-support. AshaftlS is suitablyandrotatably mounted or jour naled in said end pieces,,and 19 is theimpression-platen, secured upon said shaft. Knobs 2O aid in the manualrotation of the platen.

Upon the end of the platen is a ratchet 21, and 22 is a push-pawlengaging therewith, it

being suitably pivoted upon a lug 23 upon the laterally-swingingline-spacing lever 24, pivoted at 25 upon a boss 26, erected upon thefront rod 16.

A spacing button or stop 27 is pivoted upon the arm 15, having a lug 28,which for single spacing forms an abutment for the pawl 22,

This sectional front rail is suf-.

under the platen and yieldingly supported through the spring 33 andsupporting the paper-roll Upon the front rod 16 paperguiding fingers 35are suitably mounted, extending rearward under the platen.

A pin 36, projecting from an upward extension of one end piece of theplaten-frame, is engaged by a spring 37, secured upon the end piece ofthe carriage, (see Figs. 3 and 5,) operating in Fig. 3 to hold theplaten-frame in a fixed place when in the printing position and in Fig.5 to exert'its leverage force to support said frame and platen whenshifted.

A suitable scale 38 is mounted upon the front rail of the carriage,andthe platen swings up to it when shifted, as in Figs. 3 and 5.

The line-spacinglever 24,being angular and pivoted at one side, operateswhen swung to the right in Fig. 1 to throw or push the pawl 22 rearwardand rotate the platen for single or double spacing, according to theposition of the spacing-button 27, which is shown in Fig. (3 in positionfor single spacing, and when swung so as to shift the shoulder 28thereon out of the path of said pawl double spacing will result.

The ends of the platenframe each comprise arms 13 15 insubstantially-parallel planes, connected by an upright standing atsubstantially a right angle to said arms. The front ends of these armsare connected by the pa per-finger rod 16 and their rear ends by theapron-rod 17. The frame arbors or pivots 12 are mounted in fixedstandards 10, creating stationary pivots therefor. The platen-shaft 18is secured in said frame at the intersection of 13 and 14. Thepaper-apron and line-spacing mechanism are all carried by thisplatenframe.

To inspect the writing, the entire frame and its accessories are swungupon the arbors 12 as a fixed axis of movement until the arms 13 and 15are perpendicular or substantially so, and the platen-shaft is therebyswung forward and upward upon an are, becoming entirely disconnectedfrom the carriage, as in Fig. 5, which brings or, swings the line ofprint forward and upward to the scale 38. The frame is then whollysupported by the fixed axis 12, being steadied and held up by saidspring 37 engaging with the pin 36, and the line of print is in positionfor inspection and correction. It will be seen that the arbors 12 arestationary, and the frame swings upon a fixed axis, which does notshift, oscillate, or change in position at any time.

For line-spacing the lever 24 is swung to the right and the pawl 22 ispushed rearward and the platen is rotated the distance represented byone or two of the teeth of the ratchet 21, according to whether thespacing-button is set for single or double space. This lever,

pawl, and spacer are all mounted upon the swing-frame, and as said pawlis a gravitypawl it swings out of engagement with its ratchet when theplaten-frame is swung, as seen in Fig. 4:, and falls back into properreengagement when the frame is swung back to bring the platen into itsprinting position.

Having described my invention, what I claim, and desire to secure byLetters Patent,

1. In a type-writingmachine, the combination with a top plate, and acylindrical track erected thereon, of a movable carriage, a rail thereoncomposed of angular sections adj ustably secured together and creating atriangular chamber around said track, and balls located in the interiorangles of said rail and bearing upon three sides of said track andagainst the walls of said respective angles.

2. In a type-writing machine, the combination with a frame in which theplaten is mounted, standards upon the carriage and pivots upon saidframe journaled in said standards and constituting a fixed axis uponwhich the platen-frame rocks to swing the platen forward and upward andwholly support it while exposing the line of print.

In a type-writing machine, the combination with the movable carriage andstandards erected thereon, of a frame suspended between and having afixed axis of rotation upon said standards, and an impression-platenmounted in said frame and swung upon an arc of which said axis is thefixed center and platen-frame support to expose the line of print. 1

t. Ina type-writing machine, the combination with a carriage, of aplaten-frame having a fixed axial bearing thereon, a platenshaftengaging with said carriage only while the platen is in position forprinting, a platen upon said shaft, whereby when said frame is rockedupon its axis, said shaft is disconnected from the carriage and theplaten swung upon an arc and wholly supported by it while exposing theline of print.

5. In a type-writing machine, the combination with a movable carriage ofa platen mounted to be rotated upon a central shaft, and to swing in theare of a circle to expose the line of print upon a stationary axis normally directly above said shaft and be wholly supported by said axis andalways separated therefrom a distance greater than the radius of saidplaten.

6. In a type-writing machine, the combination with a carriage, aplaten-frame suspended therein 'upon a fixed axis, a platen jou'rnaledin said frame and provided with a ratchet, a horizontally movable linespacing lever mounted upon said frame, a pawl mounted upon said leverand normally engaging said ratchet and automatically disengagingtherefrom by gravity when said frame is swung upon its fixed axis tobring the platen into position to expose a line of print. In witnesswhereof I have hereunto set my hand this 5th day of December, 1898.

EDWIN EARL BARNEY. Witnesses:

J. BENJ. LOSEY, ELIZABETH ASHLEY.

